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Senior Leadership Team
Dr. Tahsin Choudhury
Tahsin has been working in Sustainability and Climate Change since 2003. He is a Lead Auditor and is involved in the Verification of GHG Inventories (carbon and energy reductions), the assurance of sustainability reports, green finance products and GHG reduction projects under various standards.Â
His work is both in Europe and globally across a multitude of sectors. He has extensive experience of project managing high value, time critical projects on behalf of such clients as the World Bank, Asian Development Bank, Governments and Private Clients.Â
Training:
Tahsin holds a Bachelors and Doctorate in Chemical Engineering from Imperial College, University of London and a Master’s degree in Environmental Change and Management from The University of Oxford.
Languages:
English
Mr. Rainer Winter
Rainer has been working in this field since the year 2000. He was the former founder and Head of the Climate Change Department within a large German validation and verification body.
He has substantial global experience of carbon emissions reductions projects, having been involved in this since its inception within his former employer organisation. He also has extensive knowledge of energy efficiency projects, gained through his work experience as a Senior auditor within ISO 50001 as well as the EU ETS. His work is both in Europe and globally across a multitude of sectors.
Training:
Rainer holds a Masters in Process Engineering from Clausthal University of Technology in Germany.
Languages:
German | English
mr. Yongjun Li
Yongjun’s career in Sustainability started over 2 decades ago. He was the General manager for Climate Change and Sustainability for the Chinese subsidiary of a large German validation and verification body.Â
He was also Asia Pacific Head for Sustainability. He is a is a Senior auditor for a number of standards including ISO Quality, Environmental and Energy Standards. He has considerable global experience of emissions reductions projects, as well projects in Sustainable Bio-mass (FSC) and Bio-fuels (ISCC).
Training:
Yongjun holds a Bachelors degree in Environmental Engineering from Lanzhou University in China
Languages:
Chinese | German | English
Mr. Stefan Winter
Stefan is a senior auditor with over 15 years experience in sustainability certification, energy efficiency, and greenhouse gas (GHG) verification.
Stefan has extensive auditing and verification experience, both Internationally and Nationally across various industries, under various GHG schemes, ISO 50001 and the EU Emissions Trading System (EU ETS). He is one of the very few auditors who has been under an international Hydrogen Standard, which has further expanded his expertise to include emerging clean energy technologies.
Training:
Stefan holds a Diploma, Mechanical Engineering (Energy Technology Specialisation) from University of Applied Science Regensburg and a Master of Science (M.Sc.), Environmental Engineering from University of Duisburg-Essen
Languages:
German | English
